Cosmograph Daytona "Zenith El Primero"

SPECIFICATIONS

Brand: Rolex
Model: Oyster Perpetual Cosmograph Daytona Zenith El Primero
Reference Number: 16528
Movement: Automatic
Condition: Very good (some loss areas on the black painted Tachymeter scale on the bezel can be refinished)
Gender: Men’s
Time Period: 1995
Box: Yes
Papers: No

THE CALIBER

Caliber: 4030
Jewels: 31 

THE CASE

Case Material: 18K yellow gold
Case Diameter: 40 mm
Thickness: 13 mm
Waterproof: 100 ft./ 30 m./ 3 ATM
Bezel Material: Fixed 18K yellow gold engraved Cosmograph Tachymeter scale
Glass: Sapphire Crystal
Caseback: Solid
Dial: Black with champagne outer sub-dial rings 
Dial Numerals: 18K yellow gold applied baton with luminescent dart hour indices, railway track minutes/second scale  around the outer rim

THE BRACELET / STRAP

Bracelet Material: Integral 18k yellow gold Oyster
Buckle: Folding Oysterlock safety clasp
Buckle Material: 18K yellow gold

THE FUNCTIONS

Center hour, minute and seconds hands, chronograph (center hand) accurate to within 1/8 of a second, chronograph sub-dials counters 60-second at 9 o'clock, 30-minute at 3 o’clock and 12-hour at 6 o’clock, Tachymeter counter on the bezel, 72-hour power reserve.

FURTHER READING

Tonneau-shaped 
18K yellow gold and luminescent baton hands, yellow gold applied stick center sweep seconds hand
Double quickset, stop-seconds for precise time setting
18K yellow gold solid screw-down, brushed case back, screw-down chronograph pushbuttons, and a Triplock winding crown with a Rolex crown engraved protected by the crown guard
A solid three-body case, curved lugs, and flat angled bezel with tachometer graduation to 400 UPH are polished/brushed.
The ref. 16528 has a mechanical automatic self-winding Zenith El Primero caliber 4030 (Zenith base 400) movement. It's rhodium-plated, with oeil-de-perdrix embellishment. It's constructed with 31 jewels, a blue Parachrom hairspring, an Incabloc shock absorber device, and a straight-line lever escapement. It includes a monometallic balance that's adjusted to temperatures and 5 positions, a self-compensating free-sprung Breguet balance spring, and Microstella regulating screws.
This mechanism oscillates at a frequency of 28,800 vph (4 Hz).
Introduced in 1963 as a sports companion for professional race car drivers, the Daytona comes equipped with a Tachymeter bezel alongside the sub-dials to calculate speeds of up to 400 kilometers per hour. 
W serial 
Incomplete (box, no papers)

Warranty & authenticity

We stand behind the authenticity and quality of our merchandise, nothing is more important to us that a transparent transaction that makes our clients well-pleased.
Twain Time has more than 30 years of experience in buying and selling previously owned luxury goods, and quality-control is extremely important to us. Our trusted experts take the worry out of buying so that you can focus on finding your most desirable watch or jewelry.
Every item has undergone a thorough inspection by our knowledgeable technicians, ensuring full originality (unless stated otherwise) and perfect working condition to assure you get everything as expected. We know the value of security.
To provide further peace of mind, we offer a 12-month limited warranty alongside any remaining manufacturer’s warranty on all our luxury timepieces and fine jewelry from the date of purchase.
Please see our Terms & Conditions for further information.

Shipping & Returns

We offer a fully insured domestic & worldwide, express & priority delivery service. If ordering from the US, your order will be sent immediately after the reception of the funds.
The courier will depend on the value of the purchase, with all orders delivered the next business day. If ordering from outside the US, your order will be sent immediately after reception and clearance of the funds. International deliveries will depend on the choice of the courier and the destination. Our commitment does not end at delivery.
We offer a 7-day store credit/exchange to make your experience as pleasant and comfortable as possible.
Please see our Terms & Conditions for further information. We make continuous efforts to provide outstanding service. We value our clients' relationships and strive to offer the highest quality of customer service at every opportunity.